END OF TASK
TASK 53-05-02-250-844
64. INTERNAL - SPECIAL DETAILED: WING TO BODY UPPER DRAG ANGLE
NOTE: This procedure is a scheduled maintenance task.
A. Location Zones
Zone Area
125 Air Conditioning Distribution Bay - Left
126 Air Conditioning Distribution Bay - Right
131 Center Section Wing Box, Body Station 540.00 to Body Station 663.75 - Left
132 Center Section Wing Box, Body Station 540.00 to Body Station 663.75 - Right
191 Lower Wing-To-Body Fairing - Forward of Wing Box
B. Access Panels
Number Name/Location
191AL Forward Wing To Body Fairing Panel - Upper
191AR Forward Wing To Body Fairing Panel - Upper
191FL Forward Wing To Body Fairing Panel - Mid Fairing, Above Ram Air Inlet
191FR Forward Wing To Body Fairing Panel - Mid Fairing, Above Ram Air Inlet
C. Inspection
SUBTASK 53-05-02-010-061
(1) Open these access panels on the Left side:
Number Name/Location
191AL Forward Wing To Body Fairing Panel - Upper
191FL Forward Wing To Body Fairing Panel - Mid Fairing, Above Ram Air
Inlet
Open these access panels on the Right side:
Number Name/Location
191AR Forward Wing To Body Fairing Panel - Upper
191FR Forward Wing To Body Fairing Panel - Mid Fairing, Above Ram Air
Inlet
NOTE: Removal of wing to body fairings, duct located aft of STA 536 and sealant along edge
of angle to body contour and lower wing skin is required.
SUBTASK 53-05-02-250-044
(2) Do a High Frequency Eddy Current inspection, eight inches FWD and AFT of STA 536 along
the inboard angle at the angle to fuselage interface (FWD of STA 536) and the angle to lower
wing skin interface (AFT of STA 536).
See Doc D626A001-DTR, DTR check form 53-30-11-02 for alternative inspections.
The NDI method(s) necessary to accomplish the intent of this inspection is contained in the
737 Nondestructive Test Manual (D6-37239). The inspection procedures are contained in Part
6, Subject 53-30-47.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-05-02
Page 237
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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